A search for VHE counterparts of galactic Fermi sources

Details A search for VHE counterparts of galactic Fermi sources A search for VHE counterparts of galactic Fermi sources

2010-01-18

arxiv.org/abs/1001.2950v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

6 pages, 3 figures, 4 tables, conference proceeding of the '7th Agile Meeting and The Bright Gamma-Ray Sky' held 29 September

Scientific paper

Very high-energy (VHE; E > 100 GeV) gamma-rays have been detected from a wide range of astronomical objects, such as SNRs, pulsars and pulsar wind nebulae, AGN, gamma-ray binaries, molecular clouds, and possibly star-forming regions as well. At lower energies, sources detected using Large Area Telescope (LAT) aboard Fermi provide a rich set of data which can be used to study the behavior of cosmic accelerators in the GeV to TeV energy bands. In particular, the improved angular resolution in both bands compared to previous instruments significantly reduces source confusion and facilitates the identification of associated counterparts at lower energies. In this talk, a comprehensive search for VHE gamma-ray sources which are spatially coincident with Galactic Fermi/LAT bright sources is performed, and the GeV to TeV spectra of selected coincident sources are shown. It is found that LAT bright GeV sources are correlated to TeV sources, in contrast with previous studies using EGRET data.

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